Home / 121,156.45-181,740.78-46,283.09

Finding the Fourth Proportional to 121,156.45, 181,740.78 and 46,283.09

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Solution

The fourth proportional to 121,156.45, 181,740.78 and 46,283.09 is: 69,426.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,156.45 : 181,740.78 = 46,283.09 : x
  2. Step 2: Convert to fraction form
    121,156.45/181,740.78 = 46,283.09/x
  3. Step 3: Cross multiply
    121,156.45x = 181,740.78 × 46,283.09
  4. Step 4: Simplify right side
    121,156.45x = 8,411,523,968.71
  5. Step 5: Solve for x
    x = 8,411,523,968.71/121,156.45
  6. Step 6: Final answer
    x = 69,426.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.